1. a standard issue service pistol is the beretta m9. it fires a 9 mm diameter round that has a mass of 8 gr. the standard muzzle velocity is 360 m/s. the barrel is 12.7 cm long.
a. how long does the bullet take to travel through the barrel after it is fired?
(hint: v in t = d/v, is the average v of the bullet in the barrel.
Answers: 3
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